LTC2054_15,LTC2054_15 pdf中文资料,LTC2054_15引脚图,LTC2054

FEATURES

n

LTC2054/LTC2055

Single/Dual Micropower

Zero-Drift Operational Ampliﬁers

DESCRIPTION

The LTC

®

2054/LTC2055 are low power, low noise, single/

dual, zero-drift operational ampliﬁers with an extended

temperature version (LTC2054MP) that has guaranteed

speciﬁcations from –55°C to 150°C. They are available

in TSOT-23 (ThinSOT™) and MS8 packages. For space

limited applications, the LTC2055 is also available in a

3mm

×

3mm

×

0.8mm dual ﬁne pitch leadless package

(DFN). They operate from a single 2.7V minimum supply

and support ± 5V applications. The current consumption

is typically 150μA for the LTC2054 and 130μA/amp for

the LTC2055.

The LTC2054/LTC2055, despite their miniature size, feature

uncompromising DC performance. The maximum input

offset voltage and offset drift are 3.0μV and 30nV/°C over

the –40°C to 85°C industrial temperature range. The almost

zero DC offset and drift are supported with a power supply

rejection ratio (PSRR) and common mode rejection ratio

(CMRR) of 130dB (typ).

The input common mode voltage ranges from the negative

supply up to typically 0.5V below the positive supply. The

open-loop gain is typically 140dB. The LTC2054/LTC2055

also feature a 1.6μV

P-P

DC to 10Hz noise and a 500kHz

gain-bandwidth product.

L,

LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear

Technology Corporation. ThinSOT is a trademark of Linear Technology Corporation. All other

trademarks are the property of their respective owners.

n

Supply Current 150μA (Max per Ampliﬁer)

Guaranteed from –40°C to 85°C

Offset Voltage 3μV (Max, –40°C to 85°C)

Offset Voltage Drift 30nV/°C (Max, –40°C to 85°C)

Guaranteed Speciﬁcations from –55°C to 150°C

(LTC2054MP)

Common Mode Input Range from V

–

to V

+

– 0.5V

Output Swings Rail-to-Rail

Voltage Gain: 140dB (Typ)

PSRR and CMRR: 130dB (Typ)

Input Bias Current: 1pA (Typ, 25°C)

Noise: 1.6μV

P-P

(0.01Hz to 10Hz Typ)

Supply Operation:

2.7V to 6V (LTC2054/LTC2055)

2.7V to ±5.5V (LTC2054HV/LTC2055HV)

Low Proﬁle (1mm) TSOT-23, MS8 and

3mm

×

3mm

×

0.8mm DFN Packages

APPLICATIONS

n

Thermocouple Ampliﬁers

Electronic Scales

Medical Instrumentation

Strain Gauge Ampliﬁers

High Resolution Data Acquisition

DC Accurate RC Active Filters

Low Side Current Sense

Battery-Powered Systems

TYPICAL APPLICATION

–48V Low Side Precision Current Sense

10

Q1

ZETEX

ZVN3320F

100Ω

1%

39k

0.1μF

5V

V

OS

(μV)

10k

1%

8

6

4

2

0

–2

–4

–6

–8

V

OS

vs Temperature

V

S

= ±5V

–

LTC2054

0.01μF

–

LTC2054

V

OUT

= 100V

SENSE

+

0.1μF

+

BZX84C5V1

V

Z

= 5.1

–48V SUPPLY

100Ω

0.003Ω

1% 3W

–

I

SENSE

, V

SENSE

+

20545 TA01

–48V LOAD

–10

–55

–20

15

50

85

120

155

TEMPERATURE (°C)

20545 TA01b

20545fc

1

LTC2054/LTC2055

ABSOLUTE MAXIMUM RATINGS

(Note 1)

Total Supply Voltage (V

+

to V

–

)

LTC2054/LTC2055 ...................................................7V

LTC2054HV/LTC2055HV........................................12V

Input Voltage .......................(V

+

+ 0.3V) to (V

S–

– 0.3V)

Input Current........................................................±10mA

Output Short-Circuit Duration ......................... Indeﬁnite

Speciﬁed Temperature Range (Note 2)

LTC2054C/LTC2055C ............................... 0°C to 70°C

LTC2054I/LTC2055I.............................. –40°C to 85°C

LTC2054H/LTC2055H .........................–40°C to 125°C

LTC2054MP .......................................–55°C to 150°C

Storage Temperature Range.................. –65°C to 150°C

DD Package .......................................–65°C to 125°C

Lead Temperature (Soldering, 10 sec)

TSOT23 and MS8 Packages ............................. 300°C

PIN CONFIGURATION

TOP VIEW

OUT A

5V

+

TOP VIEW

OUT 1

V

–

2

+IN 3

4 –IN

1

2

3

4

8

7

6

5

V

+

OUT B

–IN B

+IN B

OUT A

–IN A

+IN A

V

–

1

2

3

4

TOP VIEW

8

7

6

5

V

+

OUT B

–IN B

+IN B

–IN A

+IN A

V

–

S5 PACKAGE

5-LEAD PLASTIC TSOT-23

T

JMAX

= 150°C,

θ

JA

= 250°C/W

DD PACKAGE

8-LEAD (3mm

×

3mm) PLASTIC DFN

UNDERSIDE METAL INTERNALLY

CONNECTED TO V

–

(PCB CONNECTION OPTIONAL)

T

JMAX

= 125°C,

θ

JA

= 160°C/W (NOTE 5)

MS8 PACKAGE

8-LEAD PLASTIC MSOP

T

JMAX

= 150°C,

θ

JA

= 200°C/W

ORDER INFORMATION

LEAD FREE FINISH

LTC2054CS5#PBF

LTC2054HVCS5#PBF

LTC2054IS5#PBF

LTC2054HVIS5#PBF

LTC2054HS5#PBF

LTC2054HVHS5#PBF

LTC2055CDD#PBF

LTC2055HVCDD#PBF

LTC2055IDD#PBF

LTC2055HVIDD#PBF

LTC2055HDD#PBF

LTC2055HVHDD#PBF

LTC2055CMS8#PBF

LTC2055HVCMS8#PBF

LTC2055IMS8#PBF

TAPE AND REEL

LTC2054CS5#TRPBF

LTC2054HVCS5#TRPBF

LTC2054IS5#TRPBF

LTC2054HVIS5#TRPBF

LTC2054HS5#TRPBF

LTC2054HVHS5#TRPBF

LTC2055CDD#TRPBF

LTC2055HVCDD#TRPBF

LTC2055IDD#TRPBF

LTC2055HVIDD#TRPBF

LTC2055HDD#TRPBF

LTC2055HVHDD#TRPBF

LTC2054CMS8#TRPBF

LTC2055HVCMS8#TRPBF

LTC2055IMS8#TRPBF

PART MARKING* PACKAGE DESCRIPTION

LTAGB

LTAGD

LTAGB

LTAGD

LTAGB

LTAGD

LBCW

LBCX

LBCW

LBCX

LBCW

LBCX

LTBCR

LTBCT

LTBCR

5-Lead Plastic TSOT-23

8-Lead (3mm

×

3mm) Plastic DFN

8-Lead (3mm

×

3mm) Plastic DFN

8-Lead (3mm

×

3mm) Plastic DFN

8-Lead (3mm

×

3mm) Plastic DFN

8-Lead (3mm

×

3mm) Plastic DFN

8-Lead (3mm

×

3mm) Plastic DFN

8-Lead Plastic MSOP

SPECIFIED TEMPERATURE RANGE

0°C to 70°C

–40°C to 85°C

–40°C to 125°C

0°C to 70°C

–40°C to 85°C

–40°C to 125°C

0°C to 70°C

–40°C to 85°C

20545fc

2

LTC2054/LTC2055

ORDER INFORMATION

LEAD FREE FINISH

LTC2055HVIMS8#PBF

LTC2055HMS8#PBF

LTC2055HVHMS8#PBF

LTC2054MPS5#PBF

LTC2054HVMPS5#PBF

TAPE AND REEL

LTC2055HVIMS8#TRPBF

LTC2055HMS8#TRPBF

LTC2055HVHMS8#TRPBF

LTC2054MPS5#TRPBF

LTC2054HVMPS5#TRPBF

PART MARKING* PACKAGE DESCRIPTION

LTBCT

LTBCR

LTBCT

LTFFF

LTFFG

8-Lead Plastic MSOP

5-Lead Plastic TSOT-23

SPECIFIED TEMPERATURE RANGE

–40°C to 85°C

–40°C to 125°C

–55°C to 150°C

Consult LTC Marketing for parts speciﬁed with wider operating temperature ranges. *The temperature grade is identiﬁed by a label on the shipping container.

Consult LTC Marketing for information on non-standard lead based ﬁnish parts.

For more information on lead free part marking, go to:

http://www.linear.com/leadfree/

For more information on tape and reel speciﬁcations, go to:

http://www.linear.com/tapeandreel/

ELECTRICAL CHARACTERISTICS

SYMBOL

I

S

I

S

V

OS

ΔV

OS

/ΔT

I

B

I

OS

e

n

CMRR

PARAMETER

Supply Current (LTC2054)

Supply Current Per Ampliﬁer

(LTC2055)

Input Offset Voltage

Average Input Offset Drift

Long-Term Offset Drift

Input Bias Current

Input Offset Current

Input Noise Voltage

Common Mode Rejection Ratio

(Note 4)

CONDITIONS

No Load

(Note 3)

(LTC2054/LTC2055) The

l

denotes the speciﬁcations which apply over the

full operating temperature range, otherwise speciﬁcations are at T

A

= 25°C. V

S

= 3V, 5V unless otherwise noted. (Note 2)

LTC2054C/LTC2055C

LTC2054I/LTC2055I

MIN

●

LTC2054H/LTC2055H

MIN

TYP

140

130

± 0.5

0.02

50

±1

MAX

180

155

±3

± 0.05

UNITS

μA

μV

μV/°C

nV/√mo

± 3000

±2

± 700

0.6

1.6

115

110

120

115

120

115

120

115

125

120

2.87

2.84

4.80

4.70

2.98

2.97

4.985

4.970

130

135

140

2.89

4.83

2.99

4.99

pA

μV

P-P

μV

P-P

dB

V

20545fc

TYP

140

130

±0.5

MAX

175

150

±3

±0.03

●

0.02

50

±1

●

±150

±2

±300

0.6

1.6

(Note 4)

●

R

S

= 100Ω, DC to 1Hz

R

S

= 100Ω, DC to 10Hz

V

CM

= GND to V

+

– 0.7V

V

S

= 3V

V

CM

= GND to V

+

– 0.7V

V

S

= 5V

●

115

110

120

115

120

115

120

115

125

120

2.87

2.85

4.80

4.75

2.98

2.975

4.985

4.980

130

135

140

2.89

4.83

2.99

4.99

PSRR

A

VOL

Power Supply Rejection Ratio

Large-Signal Voltage Gain

V

S

= 2.7V to 6V

R

L

= 100k, V

S

= 3V, V

OUT

= V

S

/2

R

L

= 100k, V

S

= 5V, V

OUT

= V

S

/2

V

OUT

Output Voltage Swing High

R

L

= 5k to GND, V

S

= 3V

R

L

= 5k to GND, V

S

= 3V

R

L

= 5k to GND, V

S

= 5V

R

L

= 5k to GND, V

S

= 5V

R

L

= 100k to GND, V

S

= 3V

R

L

= 100k to GND, V

S

= 3V

R

L

= 100k to GND, V

S

= 5V

R

L

= 100k to GND, V

S

= 5V

3

LTC2054/LTC2055

ELECTRICAL CHARACTERISTICS

SYMBOL

V

OUT

PARAMETER

Output Voltage Swing Low

CONDITIONS

R

L

= 5k to GND, V

S

= 3V

R

L

= 5k to GND, V

S

= 3V

R

L

= 5k to GND, V

S

= 5V

R

L

= 5k to GND, V

S

= 5V

R

L

= 100k to GND, V

S

= 3V

R

L

= 100k to GND, V

S

= 3V

R

L

= 100k to GND, V

S

= 5V

R

L

= 100k to GND, V

S

= 5V

SR

GBW

f

S

Slew Rate

Gain Bandwidth Product

Internal Sampling Frequency

●

(LTC2054/LTC2055) The

l

denotes the speciﬁcations which apply over the

full operating temperature range, otherwise speciﬁcations are at T

A

= 25°C. V

S

= 3V, 5V unless otherwise noted. (Note 2)

LTC2054C/LTC2055C

LTC2054I/LTC2055I

MIN

TYP

2

●

LTC2054H/LTC2055H

MIN

TYP

3

0.5

500

1

MAX

8

10

8

10

8

10

8

10

UNITS

mV

V/μs

kHz

MAX

8

10

8

10

8

10

8

10

2

●

2

●

0.5

500

1

(LTC2054HV/LTC2055HV) The

●

denotes the speciﬁcations which apply over the full operating temperature range, otherwise

speciﬁcations are at T

A

= 25°C. V

S

= ±5V unless otherwise noted. (Note 2)

LTC2054HVC/LTC2055HVC

LTC2054HVI/LTC2055HVI

SYMBOL

I

S

I

S

V

OS

ΔV

OS

/ΔT

I

B

I

OS

e

n

CMRR

PSRR

AVOL

V

OUT

PARAMETER

Supply Current

Supply Current (Per Ampliﬁer)

Input Offset Voltage

Average Input Offset Drift

Long-Term Offset Drift

Input Bias Current

Input Offset Current

Input Noise Voltage

Common Mode Rejection Ratio

Power Supply Rejection Ratio

Large-Signal Voltage Gain

(Note 4)

●

LTC2054HVH/LTC2055HVH

MIN

TYP

175

150

±0.5

0.025

50

±3

MAX

215

185

±5

± 0.05

UNITS

μA

μV

μV/°C

nV/√mo

± 3000

±6

± 700

0.6

1.6

120

115

120

115

125

120

±4.78

±4.70

±4.98

±4.97

130

140

±4.82

±4.99

0.5

500

1

pA

μV

P-P

μV

P-P

dB

V

V/μs

kHz

CONDITIONS

No Load (LTC2054)

No Load (LTC2055)

(Note 3)

●

MIN

TYP

175

150

±0.5

0.025

50

±3

MAX

210

180

±5

±0.03

±150

±6

±300

0.6

1.6

(Note 4)

●

R

S

= 100Ω, DC to 1Hz

R

S

= 100Ω, DC to 10Hz

V

CM

= GND to V

+

– 0.9

V

S

= 2.7V to 11V

R

L

= 100k, V

OUT

= GND

●

120

115

120

115

125

120

± 4.78

±4.75

± 4.98

±4.975

130

140

± 4.82

± 4.99

0.5

500

1

Maximum Output Voltage Swing R

L

= 5k to GND

R

L

= 5k to GND

R

L

= 100k to GND

R

L

= 100k to GND

SR

GBW

f

S

Slew Rate

Gain Bandwidth Product

Internal Sampling Frequency

20545fc

4

LTC2054/LTC2055

(LTC2054MP) The

l

denotes the speciﬁcations which apply over the full

operating temperature range, otherwise speciﬁcations are at T

A

= 25°C. V

S

= 3V, 5V unless otherwise noted. (Note 2)

SYMBOL

I

S

V

OS

ΔV

OS

/ΔT

I

B

I

OS

e

n

CMRR

PARAMETER

Supply Current

Input Offset Voltage

Average Input Offset Drift

Long-Term Offset Drift

Input Bias Current

Input Offset Current

Input Noise Voltage

Common Mode Rejection Ratio

(Note 4)

●

ELECTRICAL CHARACTERISTICS

CONDITIONS

No Load

(Note 3)

(Note 3) –55°C to 135°C

(Note 3)

●

MIN

TYP

145

MAX

190

±10

±8

UNITS

μA

μV

μV/°C

nV/√mo

pA

nA

pA

nA

μV

P-P

μV

P-P

dB

V

0.04

50

±1

± 0.1

± 12

±2

±5

0.6

1.6

R

S

= 100Ω, DC to 1Hz

R

S

= 100Ω, DC to 10Hz

V

CM

= GND to V

+

– 0.7V

V

S

= 3V

V

CM

= GND to V

+

– 0.7V

V

S

= 5V

●

115

105

120

110

120

110

120

110

125

115

2.87

2.84

4.80

4.70

2.98

2.97

4.985

4.970

130

135

140

2.89

4.83

2.99

4.99

3

8

10

8

10

8

10

8

10

PSRR

A

VOL

Power Supply Rejection Ratio

Large-Signal Voltage Gain

V

S

= 2.7V to 6V

R

L

= 100k, V

S

= 3V, V

OUT

= V

S

/2

R

L

= 100k, V

S

= 5V, V

OUT

= V

S

/2

V

OUT

Output Voltage Swing High

R

L

= 5k to GND, V

S

= 3V

R

L

= 5k to GND, V

S

= 3V

R

L

= 5k to GND, V

S

= 5V

R

L

= 5k to GND, V

S

= 5V

R

L

= 100k to GND, V

S

= 3V

R

L

= 100k to GND, V

S

= 3V

R

L

= 100k to GND, V

S

= 5V

R

L

= 100k to GND, V

S

= 5V

V

OUT

Output Voltage Swing Low

R

L

= 5k to GND, V

S

= 3V

R

L

= 5k to GND, V

S

= 3V

R

L

= 5k to GND, V

S

= 5V

R

L

= 5k to GND, V

S

= 5V

R

L

= 100k to GND, V

S

= 3V

R

L

= 100k to GND, V

S

= 3V

R

L

= 100k to GND, V

S

= 5V

R

L

= 100k to GND, V

S

= 5V

mV

V/μs

kHz

●

3

●

3

●

SR

GBW

f

S

Slew Rate

Gain Bandwidth Product

Internal Sampling Frequency

0.5

500

1

20545fc

5

LTC2054_15

LTC2054_15概述

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